Valvoline Radiator Stop Leak is a quick and easy method for sealing the cooling systems when there is loss of cooling fluids and small leakages.  

It contains a unique combination of natural components with a relatively high molecular mass and an advanced sealant, all dissolved in a corrosion inhibiting fluid. When used according to the manual, holes are sealed within seconds. Suitable for use in all types of cooling systems, except high-performance diesel cooling systems with a filter. Mixable with water and all common coolants.

Capacity : 350 ml